In this paper, design and optimization procedures are developed for a conventional extractive distillation sequence and a thermally coupled extractive distillation scheme. The proposedmethodologies detect the optimal values of the design variables in order to guarantee theminimumenergy consumption. It was found that the optimumenergy consumption can be related to the minimum total annual operat...

To mitigate climate change, city authorities are developing policies in areas such as transportation, housing and energy use, to reduce greenhouse gas emissions. In addition to their effects on greenhouse gas emissions, these policies are likely to have consequences for the wellbeing of their populations for example through changes in opportunities to take physical exercise. In order to explore...

The substitution of fossil fuels with biofuels has been proposed in the European Union (EU) as part of a strategy to mitigate greenhouse gas emissions from road transport, increase security of energy supply and support development of rural communities. In this paper, we examine this opportunity, by focusing on one of these purported benefits, the reduction in greenhouse gas emissions. The cost ...

ENVIRONMENTAL PERSPECTIVE Most people today are aware of environmental issues related to consumption of fossil fuels. Global warming and consequent unwanted changes in the chemistry of our planet, as a result of greenhouse gas emissions, is a chief concern, which motivates investments to replace fossil fuels by renewable energies. In the year 2000, the annual CO2 emission from the combustion of...

The recent growth in production and utilization of natural gas offers potential climate benefits, but those benefits depend on lifecycle emissions of methane, the primary component of natural gas and a potent greenhouse gas. This study estimates methane emissions from the transmission and storage (T&S) sector of the United States natural gas industry using new data collected during 2012, includ...

This paper examined the determinants (decomposed into enablers and de-enablers) of global greenhouse gas (GHG) emissions to deepen debate on enhancing implementation social cost carbon or pricing. Data from world development indicators were utilized in this study. The study leverages autoregressive distributive lag model, pairwise granger causality, impulse response function tests. found that t...

Solid waste, including municipal waste and its management, is a major challenge for most cities and among the key contributors to climate change. Greenhouse gas emissions can be reduced through recovery and recycling of resources from the municipal solid waste stream. In São Paulo, Brazil, recycling cooperatives play a crucial role in providing recycling services including collection, separatio...

This report examines available information on low and ultra-low sulfur diesel and alternative fuels for heavy vehicles in terms of their emissions of greenhouse gases and air pollutants. Most of this information is from overseas, and has been used to estimate emissions for heavy vehicles using such fuels in Australia. This is done within a life-cycle framework that considers both the pre-combus...

Management practices that reduce greenhouse gas emissions from farms or increase on-farm carbon storage can contribute to climate change mitigation. Farmers, however, are only likely to adopt new management practices if they contribute to farm profitability. We use the Agricultural Production Systems sIMulator (APSIM) to simulate how different cropping practices contribute to greenhouse gas aba...

The net impact of human nitrogen (N) fixation on climate (ignoring short-lived components) mainly depends on the magnitude of the warming effect of (direct and indirect) nitrous oxide (N2O) emissions and the cooling effect of N-induced carbon dioxide (CO2) uptake. N-induced CO2 uptake is caused by anthropogenic N deposition which increases net primary production (NPP) in N-limited ecosystems an...